Basell Polyolefine Gmbh

Basell Poliolefine Italia, S.p.a.

Michael D Wolkowicz

Dieter Lilge

Johannes-Friedrich Enderle

Jay S Rosenthal

Eike Kretzschmar

A transparent high density polyethylene (HDPE) sheet is disclosed. The sheet has a thickness greater than or equal to 0.05 mm and a bulk haze less than 2%. The HDPE resin is converted into a sheet by thermal processing and the sheet is then uniaxially oriented at a temperature above the melting point of the HDPE resin. The transparent HDPE sheet of the invention can be used for windows and plastic containers.

Preparation of transparent high density polyethylene sheets

A polyolefin nanocomposite is prepared by melt blending (a) a polyolefin and (b) a smectite clay in the presence of at least one intercalating agent that is a solid at room temperature and is selected from the group consisting of (a) hydroxy-substituted carboxylic acid esters, (b) amides, (c) hydroxy-substituted amides, and (d) oxidized polyolefins, wherein the ratio of the intercalating agent to the clay is at least 1:3, based on the ash content of the clay.

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Newark, DE, United States of America

Michael D Wolkowicz